Chainlink
The dominant decentralised [[oracle]] network, securing price feeds, randomness, and cross-chain messaging.
Chainlink price feeds underpin most major DeFi liquidations. Stablecoin pricing on Chainlink uses TWAP + multi-source aggregation; USDC and USDT have hardcoded $1 fallbacks in some integrations to avoid liquidation cascades during transient depegs.
Related terms
- OracleA service that brings off-chain data on-chain — most commonly asset prices used for liquidations and CDP minting.
- PythA pull-based oracle network sourced from first-party publishers (exchanges, market makers) — the dominant oracle on Solana.
- Price feedAn oracle-published time-series of an asset price, queried on-chain by protocols to value collateral or compute liquidations.